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.TH LIBSTMF 3LIB "May 8, 2009"
.SH NAME
libstmf \- SCSI Target Mode Framework library
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lstmf\fR [ \fIlibrary\fR... ]
#include <libstmf.h>
.fi

.SH DESCRIPTION
.sp
.LP
Functions in this library provide configuration management of the SCSI Target
Mode Framework (STMF), allowing clients to manage the provisioning of logical
units and targets to the initiator clients of the framework.
.SS "Definitions"
.sp
.ne 2
.na
\fBHost Group\fR
.ad
.sp .6
.RS 4n
A Host Group is a set of one or more initiator ports that are combined together
for the purposes of applying access controls to a Logical Unit object and
assigning a logical unit number to the Logical Unit. The assigned logical unit
number will be reported to the members of that Host Group via the SCSI REPORT
LUN command. Host Groups can contain initiator ports that are not visible to
the SCSI Target Mode Framework. Initiator ports might not be a member in more
than one group. A Host Group is associated with a given Logical Unit via a view
entry. Host Group names are unique within the framework.
.RE

.sp
.ne 2
.na
\fBLogical Unit\fR
.ad
.sp .6
.RS 4n
A Logical Unit object is provided to the SCSI Target Mode Framework for the
purposes of executing SCSI commands. Library clients can manage a Logical Unit
object's accessibility to one or more SCSI initiator clients. \fBlibstmf\fR
library clients cannot add or remove Logical Unit objects from the system.
Every Logical Unit object within the SCSI Target Mode Framework is owned by a
logical unit provider whose identity is available via the properties on the
Logical Unit object.
.RE

.sp
.ne 2
.na
\fBLogical Unit Number\fR
.ad
.sp .6
.RS 4n
A Logical Unit Number is the SCSI identifier of a logical unit within a target.
.RE

.sp
.ne 2
.na
\fBTarget Port\fR
.ad
.sp .6
.RS 4n
A Target port object is provided to the SCSI Target Mode Framework for the
purposes of receiving SCSI commands on a particular logical unit. Library
clients can manage a Logical Unit object's availability to one or more Target
port objects. Library clients cannot add or remove Target objects from the
system. Every Target port object within the SCSI Target Mode Framework is owned
by a Local Port provider whose identity is available via the properties on the
Target port object.
.RE

.sp
.ne 2
.na
\fBTarget Port Group\fR
.ad
.sp .6
.RS 4n
A Target Port Group is a set of one or more Target ports that are combined
together for the purposes of applying availability to a Logical Unit object. A
Target Port Group may be applied to any given Logical Unit via a view entry.
Target ports may not be a member in more than one Target Port Group. Target
Port Group names are unique within the framework.
.RE

.sp
.ne 2
.na
\fBView\fR
.ad
.sp .6
.RS 4n
A View is a list of logical units exposed to a list of initiator ports through
a list of targets.
.RE

.sp
.ne 2
.na
\fBView Entry\fR
.ad
.sp .6
.RS 4n
A View Entry object defines the association of an host group, a target group
and a logical unit number with a specified logical unit. When a view entry is
created for a logical unit, a caller can assign all targets and/or all
initiator ports to the logical unit thus making the logical unit accessible to
all target ports and/or all initiator ports. A logical unit may have one or
more view entries associated with it. Any two view entries are considered to be
in conflict when an attempt is made to duplicate the association of any given
initiator port, target port and logical unit. Attempting this will result in an
error returned from the call to \fBstmfAddViewEntry\fR(3STMF).
.RE

.SH INTERFACES
.sp
.LP
The shared object \fBlibstmf.so.1\fR provides the public interfaces defined
below. See \fBIntro\fR(3) for additional information on shared object
interfaces.
.sp

.sp
.TS
l l
l l .
\fBstmfAddToHostGroup\fR	\fBstmfAddToTargetGroup\fR
\fBstmfAddViewEntry\fR	\fBstmfClearProviderData\fR
\fBstmfCreateHostGroup\fR	\fBstmfCreateLu\fR
\fBstmfCreateLuResource\fR	\fBstmfCreateTargetGroup\fR
\fBstmfDeleteHostGroup\fR	\fBstmfDeleteLu\fR
\fBstmfDeleteTargetGroup\fR	\fBstmfDevidFromIscsiName\fR
\fBstmfDevidFromWwn\fR	\fBstmfFreeLuResource\fR
\fBstmfFreeMemory\fR	\fBstmfGetHostGroupList\fR
\fBstmfGetHostGroupMembers\fR	\fBstmfGetLogicalUnitList\fR
\fBstmfGetLogicalUnitProperties\fR	\fBstmfGetLuProp\fR
\fBstmfGetLuResource\fR	\fBstmfGetPersistMethod\fR
\fBstmfGetProviderData\fR	\fBstmfGetProviderDataProt\fR
\fBstmfGetState\fR	\fBstmfGetTargetGroupList\fR
\fBstmfGetTargetGroupMembers\fR	\fBstmfGetTargetList\fR
\fBstmfGetTargetProperties\fR	\fBstmfGetViewEntryList\fR
\fBstmfModifyLu\fR	\fBstmfModifyLuByFname\fR
\fBstmfOfflineLogicalUnit\fR	\fBstmfOfflineTarget\fR
\fBstmfOnlineLogicalUnit\fR	\fBstmfOnlineTarget\fR
\fBstmfRemoveFromHostGroup\fR	\fBstmfRemoveFromTargetGroup\fR
\fBstmfRemoveViewEntry\fR	\fBstmfSetLuProp\fR
\fBstmfSetPersistMethod\fR	\fBstmfSetProviderData\fR
\fBstmfSetProviderDataProt\fR	
.TE

.SH FILES
.sp
.ne 2
.na
\fB\fB/lib/libstmf.so.1\fR\fR
.ad
.RS 24n
shared object
.RE

.sp
.ne 2
.na
\fB\fB/lib/64/libstmf.so.1\fR\fR
.ad
.RS 24n
64-bit shared object
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Committed
_
MT-Level	Safe
.TE

.SH SEE ALSO
.sp
.LP
.BR Intro (3),
.BR stmfAddViewEntry (3STMF),
.BR attributes (7)
